Cause:

Te VMware Tools service was hung/unresponsive on the Guest OS

Resolution:

Verify that the target virtual machine is powered on, VMware Tools is installed, and running the current or most up to date version. Below is how this should appear in the vSphere Client. If VMware tools is hung or unresponsive, restart the VMTools service from within the virtual machineThis can be through the Windows 'Services' screen or by running the following from the Windows command line net stop vmtoolsnet start vmtools